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Help! Check Engine Light is on.

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89 190E 2.6

Check engine light is on. Electric fans are not operating. Engine is heating up slightly when idling for short peroids. All fuses are good. any ideas?
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2000 c280 Sport
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First thing I would check is the engine temp sensor for the CIS. They're relatively ine...

First thing I would check is the engine temp sensor for the CIS. They're relatively inexpensive to replace. Less than $20 for the part.

-irieite
 
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